Concrete form



J. N. HELTZEL CONCRETE FORM Filed Jan. 6, 1926 5 Sheets-Sheet 1 J. N. HELTZEL CONCRETE FORM Oct. 4, l

3 Sheets-Sheet 2 Filed Jan. 6,- 1926 Oct. 4

J. N. HELTZEL CONCRETE FORM a Sheets-Shet a 17 5 Filed Jan. 6, 1926 F/QZ Lil

Patented Get. 4, 1927'.

warren tar rarest .JDH'N N. I'IELTZEL, VIABREN, OHIO.

oononarn orm.

Application filed. January e, 1926. eel-m1 m. 79,656.

The present invention relates to concrete forms, and aims to provide improvements n forms used for moldlng curbs, curbs and gutters, walls, sidewalks, and the like, this invention being an improvement over the types of concrete forms dlsclosed in my copending applications Serial Nos. 17,211 and 66,806 filed March 21 and November t, 1925,

respectively.

Another obj crete form of the kind indicated comprising a novel arrangement and assembly of the component elements whereby the device is practical and eficient in use, and adjustable for different conditions. 7

A further ob ect 18 the provision of a novel connection between the adjacent ends of the alining side railsor form members permi ting the form to be built to any desired length with the rails or rail sections connected together end to end, without the neces-' sity of using division plates between the rails or other connections between the rails intermediate the ends thereof, and the connections permitting the rails t'ojbe readily assembled, ad 'usted and separated.

'A'still furth rails or form members maybe adjusted vertically and transversely, and may be positioned in either vertical or transversely 1nclined positions, to suit various require" relatively to said yoke or device without disturbing adjoining rails.

lVith the foregoing and other objects in view, which will be apparent as the-descrip tion proceeds, the invention resides in the construction and arrangement of parts as hereinafter described and claimed, it being understood that changes can be made within the scope of what is claimed, without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein crete curb form embodying the improvements, with the face railor form member adusted for producing a battered curb;

ect is the provision of a conor object is the provision of such a structure by means of which the side Fig. 2 is a cross section of said curb form substantially in the vertical plane of two of the stakes,

portions being shown in elevaolOIl.

Fig. 3 is a cross section of another curb form showing modifications.

Fig. 4 is a perspective View corresponding with Fig. 1 illustrating other modifications.

- Fig. 5 is a cross section of the form shown in Fig. 4.

Fig. 6 is a fragmentary perspective view' of the curb completed by either the form shown. in Figs. 1 and 2 or the form shown in Figs. 4 and 5. l

Fig. 7' 's a cross section curb form adjusted to a vertical face. j

' Fig. 8 is a corresponding cross section with the inner or facerail or form member and the division plate removed, and the inner limb of the yoke swung away from the curb to facilitate finishing the concrete. 5

Fig. 9 is across section corresponding to of a simplified produce a curb with Fig. 7 illustrating the form adjusted to produce a battered curb.

Fig. 10 is a cross section corresponding with Fig. 7 illustratingthe use of superposed pails for building up theside walls of' the orm.

Referring to the concrete form shown] in Figs. 1 and 2, the outer wall of the forin-is. composed of; sheet metal rails or form mem vbers 14- arranged end to end, each of said rails having a web 15, an outwardly extending top or tread flange 16 at the upper edge of the web and provided witlra depend ing secondary flange or lip 17, anda' bottom or base flange 18 extending outwardly at the lower edge of'the web 15 and provided with an upturned secondary flange .or'lip The inner wall of the form is composed of lower sheet metal'rails or form mem ers 20 and upper face rails or form members 26 also constructe'd'of sheet metal. Each rail 20 is of a cross section similar to the rail 14, but of less height, being composed of the web 21, upper flange 22 having the depend ing secondary flange 28, and lower flange 24 having the. upstanding secondary flange 25. Each face rail 26 which is disposed J above the corresponding rail 20 to build" Figure 1 1s a perspective view of a con-" up the inner wall to the same height as the outer wall, comprises the web oryplate .30 having the top or tread flange 27 at its upper edge provided with a secondary flange or lip 28 depending therefrom, and the rail 26 has a lower flange 29 above the lower edge of the plate or web 30, so that the lower edge portion of the plate 30 can overlap the rail 20. The flange 29 may be provided by welding or otherwise securing an angle 'iron to the plate or web 30. By the provision of the flange 29 spaced above the lower edge of the plate 30, the rail 26 may be adjusted vertically or inclined, with the flange 29 spaced above the flange 22 of the lower rail 20, without leaving a space or slot between the rails and 26, inasmuch as the lower edge portion of the plate extends down wardly across the space between the flanges 22 and 29 and overlaps the web 21 of the rail 20.

r A yoke or joint device 31 is disposed between the adjacent ends of the alining'rails that are disposed end to end. The outer limb of the yoke which is disposed between the rails 14 comprises a pair of spacedbars 32, and the inner limb of the yoke which is disposed between the rails 20, 26 18 also 3 composed of a pair of spaced bars 33. An

adjustable connection between the upper portions of the bars 32 and 33 is provided in order to space the bars or limbs of the yoke different distances apart and to position the 1 inner limb or bars 33 either vertically or inclined. Thus, a cross bar 34 is secured between the upper terminals of the bars 32, so as to be pivoted or rigid therewith, and also servesto space said bars apart, and the cross bar 34 projects between the upper terminals of the bars33, thereby also spacing said bars 33 apart. A clamping bolt or element 35 extends through the bars 33 and 34 and has a nut 36 thereon, the bar 34 being provided with 'a longitudinal slot 37 receiving said bolt or element 35 to permit the bars 33 to be adjusted toward and away from the bars 32, for spacing the limbs of the yoke different distances apart and adjusting the inner limb to vertical or inclined'positions. Thebar 34 is formed with notches 38 along the lower, edge of the slot 37 toreceive the bolt 35 in predeterminedadjustments, the bolt 35 being preferably mounted for vertical movement in slots in the bars 33 to be moved downwardly and upwardly into and out of the notches 38, The bars 33 may also'be clamped on the bar 34 with the bolt 35 between the notches 38 when smaller adjustments are wanted. A pair of cross bars 39 below the bar 34 and above the rails is secured to the opposite sides of the bars 32, by welding or otherwise, and extend across the bars Each bar 39 is secured to the corresponding bar by a clamping and pivot bolt or element 40,

and the bars 39 have series of apertures'41 to receive the bolts 40 for adjusting the bars 33 toward or away from the bars 32. Individual elements 40 are preferably used for the two bars 39 so as to clamp them to the bars 33 without extending across the spac between the bars 33, i

By positioning the elements 40 in the different apertures 41, the limbs of the yoke may be adjusted to different distances apart, according to the thickness of curb desired, and by loosening the element 35, the inner limb or bars 33 of the yoke may be adjusted about the elements 40 as pivots, to position the bars 33 either vertically or inclined. The yoke is thus adjustable to suit various conditions and requirements, and the limbs of the yoke have slot-s between the bars 32 and 33 thereof to receive a division plate 42 as disclosed in application Serial l lo. 66,806 above 'referredto. The division plate 42 may be inserted and withdrawn laterally, as well as vertically, inasmuch as the yoke may be of suitable height to enable the division plate to move upwardly and downwardly out of and into the mold space between the outer and inner walls or rails.

The bars 32 and 33 of the yoke have their lower terminals bent. away from one another to'form the feet 43, and the feet 43 of each pair of bars are secured on a base plate or member 44 which serves to space the lower ends of the bars apart, as well as to support the limb of the yoke.

As shown, a transverse tie or sleeper 45 is disposed under the rails below the yoke to assist in supporting'the yoke and rails on the groundor sub-base. The tie 45 constitutes an inverted channel member as shown, with its flanges extending downwardly to enter the ground. The tie 45 has seriesof slots oropenings 46'therein for the reception of the" stakes as will hereinafter more fully appear. j

The ends of the rails abut the limbs of the yoke, and stakes or rods are used for attaching the rails removably to the yoke and enabling the rails to be adjusted vertically relatively to the yoke. For this purpose, the bars 39 have flanges 47 overhanging the ends of the rails, said bars 39 being preferably formed from angle irons. Vertical stakes or rods 48 connect the rails 14 with the outer limb of the yoke, said stakes 48 being inserted downwardly through apertures in the flanges 47, 16 and 18, and said stakes also pass through apertures in the feet 43 and base plate 44 of the bars 32, thereby holding the ends of the rails 14 against the outer limb of the yoke. stakes 48 also pass through the corresponding slot. or opening 46 of the tie 45. It will be apparent that when the stakes 48 are withdrawn the rails 14 may be shifted laterally into and out of position, and when said stakes are inserted to connect the rails 14 and yoke 31, the rails may he slid upwardly and downwardly on the stakes. cams'49 are disposed on the stakes or rods The Suitable 52 and 53.

48 to bear against; the webs of-the rails 14 for clamping the rails14 on the stakes 48 at different vertical positions, or the rails 14 may seat on the feet'43. The cams 49 have handles for conveniently turning them,

andthe, cams 49 may or may not be used according to the conditions.

, The stakes 51 for the rails 20 and 26 are composed of the upper and: lower sections The lower sections 53 pass downwardly through apertured ears orlugs' 53; welded or otherwise secured to the bars 33 and projecting from the opposite sides of said bars similar to the flanges 47, and. said stake sections also pass downwardly through apertures in the flanges 22 and 24 and in the feet 43 and base plate44 of the bars 33-, and through the corresponding slot oropening 46 in the tie 45. -The stakesections 53 have flanges 54 at their-'upperends to seat on the lugs or ears 53 and thereby limit the downward movement of said stake sections 53, and the lugs or ears 53 overlap the flangesQQ. The stake sections 58 are either tubular or have sockets in their upper, ends to receive the reduced lower ends 55 of the upper sections. 52, The stake sections 52 pass downwardly through apertures 47 in the flanges 47, the series of apertures 47 permitting the stakes 51 to be positioned different distances from the outer limb of the yoke without changing the pivots. or bolts 40. Y Theface rails 26 are connected with the stakes 51 for lateral adjustment. Thus, lateral bars-56 are secured to the flanges 27 ant. 29 and have slots 57 receiving the stakes 51, and the slots 57 extend into the flanges 27 and 29 in order that'the rails 26 may be adjusted to vertical position-above the rails 20. The slots 57 permit the face rails 26-to be adjusted toward the outerrails l4, and

to maintain the rails 26 in adjusted position 7 plates 58 have apertures receiving the stakes 51and are clamped to the bars 56 by bolts or securing elements 59 engaging through the plates 58 and working in the slots 57. When the bolts 59 are loosened the bars 56 may slide inwardly and outwardly for adjusting the rails 26. It is thus possible to position the rails 26 vertically above the rails 20 for a curb having'a vertical face; to incline the rails 26 toward the rails 14, as seen in Figs. 1 and 2 to construct a curb with an inclined or battered face; andrto offset the face rails away from the rails 20, as hereinafter described in connection with Fig. 3. In addition to such adjustments it isalso possible, as hereinbe'fore described, to adjust the inner limb of the yoke to space the inner wall of the form different distances from the outerwall and to adjust the inner wall to either vertical or inclined positions, The stakes 48 and 51 passing down through the tie'45 will assist in preventing accidental separation of the lower ends of the limbs of the yoke, and the tie 45 when used will also assist insupporting the yoke and rails. The'use of the tie45, however is optional, and the yoke and rails may rest directly on the grounder sub-base when the tie 45 is omitted. I c v i i I When the formhasbeen set up andprop erly adjusted, the grout or aggregate is poured between the outerand inner walls ,or. rai s, and the upper surface finished off, it being noted that finishing tools may move within the'yoke. By withdrawing the upper sections ofthe stakes 51 this wlll. release the'face raiis'QtS, so that said rails may be readily removed, to enable the. face. of the The bars 56 and plates.

curb to be finished. I 58engage the upper sections of the stakes 51, and when said sections are removed the lower sections 53 remain in place to hold the rails 20 in position. In some instances the sectional stakes 51 may not be necessary, and

solid stakes similarto the stakes 48 maybe used 1n lieu of the stakes 5,1, 1t being noted that the sections 52 and-53 are ofthe same diameter and may therefore be replaced by stakes similar to the stakes' 48 lt is also possible to ,use cams 60, similar to the cams 49, on the sta-hes 51 for securii'i-g; the

rails 20 in elevated positions on the stakes.

form composed of Sllperposed rails or form members.

ping relation ofthe rails 14 and 14 is some what similar tothe relation of the rails 20 and 26 hereinbefore described to provide for vertical adjustment of the upper rail. Each stake 48 passes through .the flanges 16 18*, lo andls WVhen a form is desired; in which both walls are adjustable the rails 14*" and 14 of Fig. 3 may be used for the outer wall, and

the railsQO and 26 ofFigzs. 1 and 2 used for i the inner "wall, so that both Walls maybe adjusted to different heights. 4

Fig. 3 also shows a face rail 26 of-a cross section similar to the rails 20 with the slotted bars 56 secured to the upper and lower flanges of the rail. 26 The rail 26 isishownflas adjusted toward the outer wall I The lower rail 14 has the upper and lower flanges 16 and 18, and theupper' rail 14 comprises the plate or web 15 hav- Fig. .3 illustrates the'outer wall ofthe cams 49 and 60 above the feet 4301? the yoke.

The face rails 26 is of C-shaped cross section similar to the rails 14' and 20, and similar to the face 1ail'26 shown in Fig. 3,

This construction is simplified inasmuch as the bars 56 are only secured on the upper lflanges 27 of the rails 26, the stakes 51 united below the divisions 66.

passing through apertures in the lower flanges 29 of said rails 26. The flanges 27 and bars 56 have apertures 62 'to receive the stakes 51 with the rails 26 disposed vertically above the rails 20, and the bars 56 have a series of apertures 63 to receive the stakes 51 with the rails 26 inclined to different angles toward the outer rails 14.

Fig. 6 is a perspective view of afragmentary portion of a curb as produced by the forms shown in Figs. 1 and 2 and Figs. i and 5. The curb 64 has the battered or inclined face 65, and rests on the ties or sleepers 45 which may be removed? for repeated use. divisi0ns'66 in the curb, and by using division plates 42 having their lower edges spaced above the loweredges of the rails, the sections of the curb will be integrally The curb will fracture below said divisions, "thereby producing irregular breaks so that the sections are locked together below the divisions 16 to prevent relative lateral or vertical displacement, and keepthe curb sections in alinement. 'However, if desired, the divisions 66 may extend-completely through the curb.

Figs. 7, 8 and 9 illustrate the use of a single inner or face rail'20 opposing each outer rail14. Solid stakes or rods 51 are used to engage through the upper and lower flanges 22 and, 2a of the rails 20. The division'plates 42 and 42 'shown in Figs. -7 and 9, respectively, also extend the full height of the curb so as to form complete divisions-in the curbs. Fig. 7 shows the inner rail 20 disposed vertically for pro ducing a curb with a vertical face, andthe ties or sleepers 4C5 are omitted, After the concrete has set, the inner'limbs of the yokes may be loosened and swung away from the curb to remove the rails 20 from the face of the curb, and the stakes 51 may alsobe withdrawn and the rails'20 removed, as seen in Fig. 8. This exposes the face of the curb in order that same maybe finished bysuit able finishing tools, Fig. 9 illustrates the The division plates 42 produce Fig. 10 shows the outer and inner walls of the form composed of superposed rails 14; and 20 respectively, showinghow rails of small height may be used for building up the form walls to desired height, in place of using rails of larger height as shown in Figs. 7, 8 and 9.

Havingthus described the invention, what is claimed asnew is 1. A concrete form comprising rails disposed end to end, a joint device between the ends thereof, andstakes connecting said rails and device and adapted to enter the subbase. i V

2. A concrete form comprising rails disposed end to end, a joint device between the ends thereof, and rods engaging the rails, said device having portionsabove and below the rails engaging said rods.

A concrete form comprising'rails disposedend to end, a joint device betweenthe ends thereof, and stakes engagingjthe rails and adapted Ito enter the sub-base, said-device having portions above and below the rails engaging said stakes.

' 1. A concrete form comprising rails dis posed end to end and having upper and lower flanges, a oint device between the ends of the rails, and stakes connected with said device and adapted to enter the sub-base, said stakes passing through said flanges of the rails to hold the rails in abutment with said device.

5. A concrete form comprisingrails disposed end to end and having upper and lower flanges, a joint device between the ends of the rails, and rods extending through said flanges, said device having portions above and below the rails engaging said rods. I

6. A concrete form comprising railsdisposed end to end and having upper and lower flanges, a joint device betweenthe ends of the rails, and stakes engaging through said flan ges of the rails and adapted to enter the sub-base, said device having portions above and below the rails "engaging said stakes.

7. A concrete form comprising rails 'disposed endto end, a joint device between the ends thereof, rods connecting said rails and device, and means forclampingsaid rails to said rods.

8. A concrete form comprising rails disposed end to end and having upper and lower flanges, a joint device between the ends of therails, rods connected with said device and extendingthrough said flanges to hold the rails in abutment with said device, and cams on said rods between said flanges to bear against the rails for clamping them on said rods.

9. A concrete form comprising superposed Ilia relatively adjustable rails having webs, the web of one rail projecting to overlap the web of the other rai i 10. A concrete form comprising super posed relatively adjustable rails having webs, the web of one rail projecting to overlap the web of the other rail, and means for mounting said rails forrelative vertical and lateral adjustments. I I

11. A concrete form having superposed relatively adjustable rails having webs and flanges, the web of the upper rail projecting downwardly to overlap the web of the lower rail.

12. A concrete form having superposed relatively adjustable rails having webs and flanges, the web of the upperrail projecting downwardly to overlap the web of the lower rail, and means for mounting said rails for thevertical and lateral adjustment of the upper rail.

13. A concrete form including rods, rails, and means for connecting the rails with said rods for the sliding adjustment of the rails on the rods and for the lateral adjustment of the rails relatively to the rods. 7

let. A concrete form including rods, and rails having slotted bars engaging said rods for the lateral adjustment of the rails relatively tosaid rods.

15. A concrete form including rods, rails having slotted bars engaging said rods for the lateral adjustmentof said-rails, and means for securing said bars in different adjustments relatively to said rods.

16. A concrete form including rods, rails having slotted bars engaging said rods, plates engaging said rods, and means for clamping said platesand bars together in the different adjustments of the rails.

' 17. In a concrete form, superposed rails, means for 111 unt-ing the upper rail for lateral adjustments reative'ly to the lower rail.

18. In a concrete form, superposed rails, rods engaging the lower rails, and means adjustably connecting the upper rails and rods for the lateral adjustment of said upper rails. i v

19. In a concrete form, superposed rails, rods engaging the lower rails, and slot-ted bars secured to the upper rails and engaging said rods. I

20. In a concrete form, superposed rails, rods engaging the lower rails, slotted bars secured to the upper rails and engaging said rods, and means engaging said are and rods for maintaining relative adjustments therebet-ween. V

21. In a concrete form, superposed rails, stakesengaging the .lower rails and adapted to enter the sub-base, and means adjustably connecting the upper rails and stakes.

22. In a concrete form, superposed rails, stakes engaging the lower rails and adapted to enter the sub-base, and means for ad- 'having interengaging portions and justably connecting the upper rails .1 sale.

stakes for the lateral adjustment of upper rails.

In a concrete form, superposed rails, stakes engaging the lower rails and adapted to enter the sub-base, the upper rails being" adjustable laterally relatively to the stakes, and members carried by the upper rails to engage said stakes for maintainingthe up} per rails in different lateral positions.

24. ll concrete form comprising rails disposed end to end, a joint device between the ends thereof, and an adjustable connection between said rails and device permitting adjustments of the rails relatively to said device. 1 i

25. A concrete torin comprising rails disposed end to end, a'joint device between the ends thereof, and rods connect-ed with'said device, the rails being adju'stably connected with said rods. I

26. A concrete form, superposed rails, and stakes having separable upper and lower sections, the lower stake sections engaging the lower rails, the. upper rails being connected with the'upper stake sections.

rails and adapted to enter the sub-base and having upper removable sections, the upper rails being connected with said upper stake sections, and the joint device having portions engaging said stakes above and be'ow the rails.

29. In a concrete form, rails, stakes e'ngaging through said rails to "enter the'subbase, and means on the stakes for clamping the rails on the stakes at different elevations thereon. 30. In a concrete form, rails having upper and lower flanges, stakes engaging through said flanges to enter the sub-base, and means on the stakes for clamping the rails on the stakes in different elevations.

31. In a concrete form, ralls having-upper ice and lower flanges, stakes engaging through said flanges to enter'the sub-base, and cams on said stakes between said flanges to contact with the rails and clamp them onthe stakes.

32 A concrete form comprising opposite walls, one wall being composed of superposed rails, and means formounting the upper rail for adjustment toward and away from the opposite wall.

33 A concrete form comprising opposite walls, one wall being composed of superposed rails, and means for mounting the upper rail for adjustment toward and away from the opposite wall and to different in clined positions.

84. A concrete form comprising opposite walls, one wall having upper and lower rails, and means for mounting said rails to space them different distances from the opposite wall.

35. A concrete form comprising opposite walls, one wall being composed oi? superposed rails, and means mounting said rails to space them the same or different distances from the opposite wall.

36. In a concrete form, a joint device to be disposed between the ends of rails having portions to be disposed above and below the rails, and rods engageable through said portions and adapted to engage the rails.

37. A yoke having adjustably connected limbs to be disposed between and connected to the end-s of opposite side rails.

38. A yoke having limbs to be disposed between and connected to the ends of opposite side rails, and meansadjustably connecting said limbs.

39; A yoke having limbs to be disposed between and connected to the ends of oppo-- site side rails, and vertically spaced cross members adjustably connecting said limbs" 40-. A yoke having limbs to be disposed between and connected ,to the ends of opposite side rails, and vertically spaced cross members securedto one of said limbs, the other limb being adjustably connected to said members.

ll. Ayoke having limbs to be disposed between and connected to the ends of oppo-- site side rails, a pivotal connection between said limbs, and an adjustable connection between said limbs spaced vertically from the aforesaid connection.

42. In a concrete form, a yoke having limbs to be disposed between and connected to the ends of opposite side rails, vertically spaced cross members secured to one of said. limbs, the other limb having an adjustable pivot connection with one of said members, and means for clamping the last named limb and other cross member together in different adjustments.

43. In a concrete form, a yoke having limbs to be disposed between the ends of opposite side rails, feet at the lower ends of said limbs and flanges above said test, and stakes insertable through said flanges and feet to engage said rails. I

44. In aconcrete form, a yoke having limbs to be disposed between the ends of opposite side rails, a sleeper'tc support the yoke, and stakes engageable with said yoke, said sleeper having openings for the passage of the stakes.

45. In a. concrete form, a yoke having limbs to be disposed between the ends of opposite side rails, a sleeper to support said yoke, rail-engaging stakes, said yoke having portions to receive said' stakes, and the sleeper having openings for the passage of the stakes.

d6. A concrete form comprising a yoke having adjustably connected limbs to be disposed between opposite side rails, a sleeper to support said yoke, and rail-engaging stakes engageablewith said yoke, the sleeper having a series of openings to receive said stakes in the different adjustments of said limbs.

i7. In a concrete form, a yoke having limbs to be disposed between and connected to the ends of opposite side rails, and means connecting said limbs and permitting the separation thereof. 7

48. In a concrete form, a yoke having piv otally connected limbs to be disposed between and connected to the ends of opposite side rails.

49. A concrete form comprising opposite side rails, and a yoke having adjustably connected limbs disposed betweenand connected to the ends of the opposite side rails.

50. A concrete form including a yoke having adjustably connected limbs to be (is- ,posed between the ends of opposite side rails and having portions to be disposed above and below the rails, and rail-engaging stakes insertable in said portions.

51. A concrete form comprising opposite side rails, a'yoke having adjustably con-- nected limbs disposed. between the ends of said opposite side rails and provided with portions above and below the rails, and stakes inserted through said portions and rails.

52. A concrete form comprising rails disposed end to end, a joint device, and means connectingthe rails and joint device for the lateral and vertical adjustments of the rails relatively to said device.

53. A concrete iiorm comprising opposite side rails disposed end to end, and a yoke between and connected to the ends of the rails and having pivotally connected limbs.

54. A concrete form comprising opposite side rails disposed end to end, and a yoke between and connected to the ends of the rails and having pivotally and adjustably connected limbs.

In testimony whereof I hereunto affix my signature. I

JOHN N. HETQTZEL; 

